Observed: 9th March 2017
Added: 23rd March 2017
Hard brown objects, look rather like wooden dim sum: found a handful of these on the ground under a mature Torreya californica - but the fruits of the Torreya are smooth oval-shaped things, so I assume that someone has collected these from elsewhere and has abandoned them under the Torreya.
Photos show my hand and a hand-lens for scale: apologies for quality of pics.
Anyone know what they are from?